經由…而來…grammar point · tier 2 · 經由…而來… came about by way of (a named route/process)
Names the route or process a thing was arrived at through, then states that the thing came about that way; 經由 opens the means, 而來 marks the thing as its arrival rather than a separate consequence.
字源 FORM what the parts do
經 is silk (糸) with 巠 jīng for the sound, the warp strung taut from one end of the loom to the other; 由 marks where a thing sets out from, its source or course. Together 經由 lays the route end-to-end and names what it runs along. 而 is the borrowed beard-graph, here joining the two as and so. 來 is the wheat plant borrowed for to come; 而來 is the arrival at the far end. What sits between 經由 and 而來 is the route the thing rode in along.
故事 STORY a scene to remember it by
A thread is fixed at one marked end and runs taut to the far edge. A thing slides its whole length and steps off the end as what you now hold.
字源自撰記憶法
框 · Frame
[result/thing]（是）經由 [route / process / means] 而來（的）
觸 · Trigger
You have a thing and want to present it as having come about through a named route, process, or means, not asserted on its own.
序 · The move
1Put the thing first, then open the route with 經由.Is what follows 經由 a route, process, or means the thing travelled along, not a person or a bare cause?
2Close with 而來 to land the route at the thing as its arrival.Is the arrival the thing itself in its present form, not a separate result drawn off it?
3Wrap in 是…的 when stressing that this is how it came about.Does the focus fall on the route, the one thing on show?
例 · Examples
1這些these數據figures, data是copula, opening the 是…的closes the 是…的 focus focus經由by way of統計statistics (the route)而and so (the joint)來came, arrived的。
These figures came about by way of statistics.
界 · Boundary
由於…（就/也/因此）
由於 heads a cause and draws a separate result after it; 經由…而來 names a route and lands it back on the thing itself, the thing being its own arrival. 由於 says why; 經由…而來 says by what path it reached its present form.
經過 sets out a span of time or events and puts a result on the far side of the whole span; 經由 names the means or channel travelled, and 而來 ties that channel back to the thing as how it came to be.
是…的 alone focuses one detail of a settled fact; 經由…而來 fills that focus with a route, so the detail on show is the path the thing arrived along.
✗ 這個結論是經由他而來的。 → ✓ 這個結論是經由分析而來的。 (經由 takes a route or process, not a bare person — for a person's cause use 由於他的…)
✗ 經由統計，所以得到數據。 → ✓ 數據是經由統計而來的。 (no 所以 result-arm; 而來 lands the route on the thing itself, it is not a cause→result correlative)
✗ 這些數據經由統計。 → ✓ 這些數據是經由統計而來的。 (the route needs 而來 to close it onto the thing; 經由 alone leaves the arrival unmarked)
English 'derived from / arrived at through' folds route and arrival into one verb, so learners stop after 經由 and never close with 而來; the route is left open with nothing to ride in on. 而來 is the step that lands the path back on the thing.